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How many grams of krypton gas will occupy 2.55 liters at 1.25 atm if it occupies 3.75 liters at 0.750 atm at 255 K?
a 100.0 ml aliquot of .200 M aqueous potassium hydroxide is mixed with 100.0 ml of .200 M aqueous magnesium nitrate. what mass of precipitate is formed? what is the concentration of each ion remaining in the soulution after the reaction is complet..
Suppose an adult is encased in a thermally insulating barrier so that all the heat evolved by metabolism of foodstuffs is retained by the body. What temperature does her body reach after 3.0 hours
Describe inorganic chemistry
Oxalic acid (H2C2O4) is a useful primary standard for standardizing solutions such as potassium permanganate (KMnO4). In a particular standardization experiment 29.00g of oxalic acid, is titrated with 243.00mL of permangante solution
An equilibrium mixture in a 2.00 L vessel is found to contain 0.0406 mol CH3OH, 0.170 mol CO, and 0.302 mol H2 at 500 K. Calculate Kc at this temperature.
If 2.50L of 1.25M BaCl2 added to 3.50L of 2.45 M NaCl, what is molarity of Chloride ions in final solution
A 0.484g sample of impure NH4Br is treated with 25.00ml of 0.2050 M NaOH and heated to drive off the NH3. The unreacted NaOH in the reaction mixture after heating required 9.95mL of 0.0525 M H2C2O4 to neutralize.
Calculate the freezing point of a solution of 23.4 grams of benzoic acid (C6H5CO2H) dissolved in 613 grams of naphthalene.
Determine the following characteristics of the titration curve for 25.0 mL of 0.400 M NH3(aq) titrated with 0.335 M HI(aq). (For NH3, Kb = 1.8x10-5.) (1a) The initial pH : (1b) The volume of HI(aq) required to reach the equivalence point : (1c) Th..
what effect does changing from room temperature to 37 have on the activity of the enzyme? 5 what does copper II sulfate to do the enzyme
what is the energy of light that is emittted by one iron atom during its decay from an excited state to a ground state
A graduated cylinder contains 25.0 of water. What is the new water level after 34.2 of silver metal with a density of 10.5 is submerged in the water.
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